Cylindrical excavations in overconsolidated clays supported by jet grout walls: analysis considering the consolidation effect

• Type: Article in International Conference Proceedings Book
• Date: 2011

Authors

José Leitão Borges (Author) FEUP; Gonçalo Guerra (Author) FEUP

Conference proceedings International

Title: XV European Conference on "Soil Mechanics and Geotechnical Engineering

Pages: 1421-1426

XV European Conference on "Soil Mechanics and Geotechnical Engineering"

Athens, Greece, 12-15 September, 2011

Scientific classification

FOS: Engineering and technology > Civil engineering

Other information

Abstract (EN): Using a computer program based on the finite element method, a cylindrical excavation in an overconsolidated clay, supported by a jet-grout wall, is analysed. The computer code incorporates the Biot´s consolidation theory (coupled formulation of the equilibrium and flow equations) with soil constitutive relations simulated by the p-q- critical state model. Particular attention is given, during and after the construction period, to the analysis of the excess pore pressure, stress levels and displacements in the soil, as well as of the circumferential compression stresses, bending moments, displacements and earth pressures on the wall.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6